I was advised there was an update to version 10 Beta 1 this morning. I have updated and since then my non primary monitors do not want to open the start menu. I can open the start menu fine on the primary. I have restarted my PC twice and still nothing. If i have my mouse on one of the non primary monitors and press the start button my keyboard, the menu opens but doesnt open upon clicking.

Thanks, that seems to have fixed it.